Sony hcd-sd1 service manual Table of Contents, Disassembly, Diagrams, Exploded Views

TABLE OF CONTENTS
1. SERVICING NOTE	4
2. GENERAL	7
3. DISASSEMBLY
3-1. Loading Panel	8
3-2. Glass ASSY	8
3-3. Front Panel	9
3-4. Main Board and Tuner Unit	9
3-5. CD Mechanism Deck	10
3-6. Back Panel	10
3-7. Disc Table	11
3-8. Optical Pick-up	11
4. SERVICE MODE	12
5. TEST MODE	13
6. ELECTRICAL ADJUSTMENTS	14
7. DIAGRAMS
7-1. Circuit Boards Location	16
7-2. Block Diagrams
• BD Section	17
• Main Section	19
7-3. Schematic Diagram – BD Section –	23
7-4. Printed Wiring Board – BD Section –	25
7-5. Schematic Diagram – Main (1/2) Section –	27
7-6. Schematic Diagram – Main (2/2) Section –	29
7-7. Printed Wiring Board – Main Section –	31
7-8. Schematic Diagram – Sub Trans Section –	33
7-9. Printed Wiring Board – Sub Trans Section –	34
7-10. Schematic Diagram – Panel Section –	35
7-11. Printed Wiring Board – Panel Section –	37
7-12. Schematic Diagram – AMP Section –	39
7-13. Printed Wiring Board – AMP Section –	41
7-14. Schematic Diagram – Connector Section –	43
7-15. Printed Wiring Board – Connector Section –	45
7-16. Schematic Diagram – REG Section –	47
7-17. Printed Wiring Board – REG Section –	49
7-18. IC Block Diagrams	51
7-19. IC Pin Functions	54
8. EXPLODED VIEWS
8-1. Front Panel Section	56
8-2. Chassis Section	57
8-3. Mechanism Deck Section (CDM13B-5BD19)	58
8-4. Base Unit Section (BU-5BD19)	59
9. ELECTRICAL PARTS LIST	60

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body.

During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts.

The flexible board is easily damaged and should be handled with care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, ob- serve from more than 30 cm away from the objective lens.

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveform is output two times.

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